package com.lk.service.impl;

import com.lk.service.UserService;
import org.springframework.stereotype.Service;

/**
 * @author : lk
 * @date 2021/11/18 14:57
 * @description : TODO
 * @since 1.0
 **/
@Service(value = "userService")
public class UserServiceImpl implements UserService {


    @Override
    public void select(String username) {
        // 查询失败 则重试3次
        System.out.println(username);
        int i=1/0;
    }
}
